Fort Worth Star-Telegram "DeMarcus Lawrence underwent offseason surgery, joining Dez Bryant, Tyrone Crawford and several other Cowboys on the rehab list. The defensive end had a procedure to repair a back issue that kept him on the team’s injury report for much of the second half of the season. Cowboys coach Jason..." January 31
CBS Sports "The last thing the Cowboys need is more sideline interaction involving Greg Hardy. And of course it happened anyway. According to a report from a sideline reporter for the Cowboys Radio Network, Hardy and fellow pass rusher DeMarcus Lawrence were involved in an altercation on the sideline and..." November 15
And DeMarcus Lawrence has left the field with an ankle injury, the latest Cowboys defender to be injured at practice.